LLM prices per 1M tokens

264 models · 161 price changes

Grok 4.20 Multi-Agent

xAI · Reasoning · 2M context · released Mar 31, 2026 · checked 12h ago

Grok 4.20 Multi-Agent is a variant of SpaceXAI’s Grok 4.20 designed for collaborative, agent-based workflows.

Ways to buy 4

Way to buyIn / out per 1M
xAI API
The lab's own API · cached $0.2
$1.25 / $2.5List price
xAI
zdr · cached $0.2
$1.25 / $2.5Same as list
xAI
priority · cached $0.4
$2.5 / $5+100% vs list
xAI
zdr-priority · cached $0.4
$2.5 / $5+100% vs list

USD per 1M tokens. Regions are separate routes.

Through a gateway

Your own numbers

100M input and 20M output tokens a month: $175.00 direct.

A dash: not on that gateway's own model list. No published token fee: Martian Gateway, Portkey, TrueFoundry AI Gateway.

Related models

In / out per 1M
Grok 4.7
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$2 / $6Grok 4.7 is SpaceXAI's flagship model for coding, agentic tasks, and knowledge work, succeeding Grok 4.6.
Grok 4.6
xAI · 500K
$2 / $6Grok 4.6 is a model from SpaceXAI with frontier performance on coding, knowledge work, and STEM.
Grok 4.5
xAI · 500K
$2 / $6Grok 4.5 is a model from SpaceXAI with frontier performance on coding, knowledge work, and STEM.
Grok Build 0.1
xAI · 256K
$1 / $2Grok Build 0.1 is SpaceXAI’s fast coding model trained specifically for agentic software engineering workflows.
GPT-6.1 Terra
OpenAI · 1.05MCheapest: $1 on OpenAI (flex)
$1 / $5GPT-6.1 Terra is the mid-tier model in OpenAI's GPT-6.1 series, priced below GPT-6.1 Sol.
Gemini 3.8 Flash
Google · 1MCheapest: $0.75 on Google Gemini API (flex)
$0.75 / $3.75Gemini 3.8 Flash is Google's most intelligent Flash model with significant gains from 3.7 Flash across software engineering, agentic tasks, and multi-step reasoning.
Muse Spark 1.1
Meta · 1M
$1.25 / $4.25Muse Spark 1.1 is a multimodal reasoning model from Meta, built for agentic tasks.
Qwen3.8 Max (0902)
Qwen (Alibaba) · 1M
$2 / $6Qwen3.8 Max 0902 is an updated snapshot of Qwen3.8 Max from Alibaba's Qwen team.

About Grok 4.20 Multi-Agent

Takes text, image, files in and returns text. First listed Apr 1, 2026. Up to 1.8M output tokens. Blended price $1.56 per 1M tokens at 3 input to 1 output. Model id grok-4-20-multi-agent.

Price history

$1$3Apr 1, 2026Output $2.5Input $1.25

List price since Apr 1, 2026, from Internet Archive snapshots of the OpenRouter catalog, then daily reads.

  • Price cutJun 16, 20264 months ago-37%
    Grok 4.20 Multi-Agent

    xAI cut its API price: input $2 to $1.25 and output $6 to $2.5 per 1M tokens.

Questions

How much does Grok 4.20 Multi-Agent cost?

$1.25 per million input tokens and $2.5 per million output tokens, with cached input at $0.2.

What is the context window of Grok 4.20 Multi-Agent?

2M tokens, with up to 1.8M tokens of output.

Where is Grok 4.20 Multi-Agent cheapest?

Of 4 routes tracked, xAI is cheapest at $1.25 input and $2.5 output per million tokens.

Has Grok 4.20 Multi-Agent's price changed?

Yes. The output price went from $6 to $2.5, first seen Jun 16, 2026.